<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>边框</title>
		<link rel="stylesheet" type="text/css" href="css/border.css"/>
	</head>
	<body>
		<div class="radius"></div>
		<div class="shadow"></div>
		<div class="img"></div>
	</body>
</html>
